== sanity test 398c: run fio to test AIO ================= 10:24:53 (1787840693) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.384029 s, 109 MB/s osc.lustre-OST0000-osc-ffff8c5a6c971000.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=181099: Thu Aug 27 10:25:29 2026 write: IOPS=95, BW=381KiB/s (390kB/s)(10.0MiB/26880msec); 0 zone resets slat (usec): min=27, max=9926, avg=218.71, stdev=642.32 clat (msec): min=20, max=421, avg=167.10, stdev=32.43 lat (msec): min=21, max=421, avg=167.32, stdev=32.38 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 123], 10.00th=[ 131], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 218], | 99.00th=[ 262], 99.50th=[ 279], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 252, max= 461, per=25.03%, avg=380.51, stdev=42.81, samples=53 iops : min= 63, max= 115, avg=94.83, stdev=10.71, samples=53 lat (msec) : 50=0.20%, 100=1.09%, 250=97.30%, 500=1.41% cpu : usr=0.20%, sys=1.02%, ctx=2396, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=181100: Thu Aug 27 10:25:29 2026 write: IOPS=95, BW=384KiB/s (393kB/s)(10.0MiB/26700msec); 0 zone resets slat (usec): min=25, max=10360, avg=154.47, stdev=503.33 clat (msec): min=61, max=299, avg=166.57, stdev=31.34 lat (msec): min=61, max=300, avg=166.72, stdev=31.35 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 180], 80.00th=[ 192], 90.00th=[ 203], 95.00th=[ 222], | 99.00th=[ 257], 99.50th=[ 259], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 300] bw ( KiB/s): min= 254, max= 524, per=25.17%, avg=382.65, stdev=62.73, samples=52 iops : min= 63, max= 131, avg=95.33, stdev=15.78, samples=52 lat (msec) : 100=1.95%, 250=96.64%, 500=1.41% cpu : usr=0.12%, sys=0.74%, ctx=1727, majf=0, minf=8 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=181101: Thu Aug 27 10:25:29 2026 write: IOPS=95, BW=380KiB/s (389kB/s)(10.0MiB/26931msec); 0 zone resets slat (usec): min=22, max=11223, avg=186.11, stdev=661.87 clat (msec): min=28, max=340, avg=167.28, stdev=31.14 lat (msec): min=29, max=340, avg=167.46, stdev=31.15 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 124], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 180], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 213], | 99.00th=[ 257], 99.50th=[ 296], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 263, max= 510, per=24.99%, avg=379.91, stdev=46.36, samples=53 iops : min= 65, max= 127, avg=94.62, stdev=11.62, samples=53 lat (msec) : 50=0.12%, 100=0.98%, 250=97.73%, 500=1.17% cpu : usr=0.16%, sys=0.73%, ctx=1819, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=181102: Thu Aug 27 10:25:29 2026 write: IOPS=95, BW=380KiB/s (389kB/s)(10.0MiB/26942msec); 0 zone resets slat (usec): min=24, max=11201, avg=199.55, stdev=688.19 clat (msec): min=46, max=304, avg=167.55, stdev=30.42 lat (msec): min=48, max=305, avg=167.75, stdev=30.41 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 122], 10.00th=[ 131], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 182], 80.00th=[ 190], 90.00th=[ 207], 95.00th=[ 218], | 99.00th=[ 259], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 261, max= 510, per=24.94%, avg=379.02, stdev=45.96, samples=53 iops : min= 65, max= 127, avg=94.42, stdev=11.53, samples=53 lat (msec) : 50=0.04%, 100=0.51%, 250=98.01%, 500=1.45% cpu : usr=0.14%, sys=0.92%, ctx=2340, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): WRITE: bw=1520KiB/s (1557kB/s), 380KiB/s-384KiB/s (389kB/s-393kB/s), io=40.0MiB (41.9MB), run=26700-26942msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=181118: Thu Aug 27 10:26:09 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(5048KiB/32482msec) slat (usec): min=2117, max=72828, avg=13532.81, stdev=7770.35 clat (msec): min=75, max=395, avg=192.04, stdev=54.74 lat (msec): min=83, max=419, avg=205.58, stdev=57.21 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 116], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 218], 80.00th=[ 239], 90.00th=[ 268], 95.00th=[ 288], | 99.00th=[ 355], 99.50th=[ 376], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 79, max= 254, per=24.99%, avg=154.22, stdev=41.44, samples=64 iops : min= 19, max= 63, avg=38.11, stdev=10.38, samples=64 write: IOPS=39, BW=160KiB/s (164kB/s)(5192KiB/32482msec); 0 zone resets slat (usec): min=24, max=23118, avg=264.20, stdev=1017.59 clat (msec): min=69, max=357, avg=197.45, stdev=51.66 lat (msec): min=69, max=357, avg=197.72, stdev=51.67 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 241], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 47, max= 239, per=24.75%, avg=159.14, stdev=40.91, samples=64 iops : min= 11, max= 59, avg=39.34, stdev=10.22, samples=64 lat (msec) : 100=1.17%, 250=83.48%, 500=15.35% cpu : usr=0.23%, sys=1.58%, ctx=4382, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181119: Thu Aug 27 10:26:09 2026 read: IOPS=38, BW=154KiB/s (158kB/s)(4976KiB/32316msec) slat (usec): min=35, max=83350, avg=13541.56, stdev=8046.80 clat (msec): min=7, max=418, avg=193.42, stdev=56.05 lat (msec): min=14, max=435, avg=206.97, stdev=58.14 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 114], 10.00th=[ 129], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 239], 90.00th=[ 266], 95.00th=[ 292], | 99.00th=[ 351], 99.50th=[ 397], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 71, max= 256, per=24.80%, avg=153.02, stdev=38.73, samples=64 iops : min= 17, max= 64, avg=37.81, stdev= 9.71, samples=64 write: IOPS=40, BW=163KiB/s (167kB/s)(5264KiB/32316msec); 0 zone resets slat (usec): min=31, max=9406, avg=181.96, stdev=445.99 clat (msec): min=76, max=409, avg=196.57, stdev=50.30 lat (msec): min=76, max=409, avg=196.76, stdev=50.28 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 330], 99.50th=[ 347], 99.90th=[ 388], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 63, max= 262, per=25.23%, avg=162.23, stdev=44.75, samples=64 iops : min= 15, max= 65, avg=40.12, stdev=11.18, samples=64 lat (msec) : 10=0.04%, 50=0.08%, 100=1.60%, 250=83.28%, 500=15.00% cpu : usr=0.19%, sys=1.58%, ctx=4224, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181120: Thu Aug 27 10:26:09 2026 read: IOPS=38, BW=153KiB/s (157kB/s)(4984KiB/32483msec) slat (usec): min=2573, max=63963, avg=13610.80, stdev=8023.02 clat (msec): min=33, max=422, avg=191.82, stdev=54.46 lat (msec): min=41, max=437, avg=205.43, stdev=56.83 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 113], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 215], 80.00th=[ 234], 90.00th=[ 268], 95.00th=[ 292], | 99.00th=[ 347], 99.50th=[ 351], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 57, max= 223, per=24.68%, avg=152.28, stdev=39.52, samples=64 iops : min= 14, max= 55, avg=37.64, stdev= 9.88, samples=64 write: IOPS=40, BW=162KiB/s (166kB/s)(5256KiB/32483msec); 0 zone resets slat (usec): min=29, max=34667, avg=211.37, stdev=1040.00 clat (msec): min=33, max=399, avg=197.04, stdev=52.30 lat (msec): min=33, max=399, avg=197.26, stdev=52.31 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 192], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 300], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 384], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 62, max= 318, per=24.88%, avg=159.95, stdev=45.18, samples=64 iops : min= 15, max= 79, avg=39.53, stdev=11.32, samples=64 lat (msec) : 50=0.12%, 100=1.84%, 250=83.91%, 500=14.14% cpu : usr=0.21%, sys=1.61%, ctx=4032, majf=0, minf=12 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181121: Thu Aug 27 10:26:09 2026 read: IOPS=38, BW=156KiB/s (160kB/s)(5060KiB/32463msec) slat (usec): min=2595, max=57197, avg=13737.91, stdev=8071.53 clat (msec): min=56, max=415, avg=192.30, stdev=55.18 lat (msec): min=65, max=435, avg=206.05, stdev=57.57 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 292], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 72, max= 256, per=25.16%, avg=155.25, stdev=43.37, samples=64 iops : min= 18, max= 64, avg=38.38, stdev=10.85, samples=64 write: IOPS=39, BW=160KiB/s (163kB/s)(5180KiB/32463msec); 0 zone resets slat (usec): min=32, max=9632, avg=241.28, stdev=674.53 clat (msec): min=31, max=384, avg=196.61, stdev=52.62 lat (msec): min=31, max=384, avg=196.85, stdev=52.63 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 300], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 380], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 79, max= 263, per=24.66%, avg=158.56, stdev=42.86, samples=64 iops : min= 19, max= 65, avg=39.20, stdev=10.74, samples=64 lat (msec) : 50=0.04%, 100=1.09%, 250=84.22%, 500=14.65% cpu : usr=0.29%, sys=1.62%, ctx=4603, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=618KiB/s (633kB/s), 153KiB/s-156KiB/s (157kB/s-160kB/s), io=19.6MiB (20.5MB), run=32316-32483msec WRITE: bw=643KiB/s (659kB/s), 160KiB/s-163KiB/s (163kB/s-167kB/s), io=20.4MiB (21.4MB), run=32316-32483msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=181130: Thu Aug 27 10:26:16 2026 read: IOPS=2, BW=80.2MiB/s (84.1MB/s)(40.0MiB/499msec) slat (nsec): min=34539k, max=34539k, avg=34538852.00, stdev= 0.00 clat (nsec): min=447034k, max=447034k, avg=447034269.00, stdev= 0.00 lat (nsec): min=481578k, max=481578k, avg=481577827.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 447], 50.00th=[ 447], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.21%, ctx=7, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=80.2MiB/s (84.1MB/s), 80.2MiB/s-80.2MiB/s (84.1MB/s-84.1MB/s), io=40.0MiB (41.9MB), run=499-499msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout